How to Change the Oil in a 2006 Suzuki RM85

Shop parts for a 2006 Suzuki RM85 Dirt Bike.

Keeping your 2006 Suzuki RM85’s transmission in peak condition requires routine oil changes. Regular maintenance not only extends engine life but ensures peak performance for every ride. Follow this step-by-step guide, exclusive to MotoSport.com, to change your bike’s transmission oil correctly and efficiently. This guide contains specialized tips specific to the RM85, important safety notes, and all the tools and steps you’ll need.

Tools & Supplies Needed

  • 12mm socket and ratchet (for drain bolt)
  • Drain pan
  • Measuring cup or graduated container (at least 600ml)
  • Funnel
  • Fresh transmission oil: 550 ml of SAE 10W-40, and ensure API SG, SH, SJ, SL, SM, or SN with JASO MA (MA1, MA2) rating
  • Clean rag or paper towels
  • Torque wrench (optional, for accuracy)
  • Gloves (recommended for mess and safety)

Before You Start

  • Ensure the bike is on a level surface and fully upright.
  • Let the engine cool down if you’ve just ridden. Transmission oil and engine parts can cause serious burns. Wait until the oil drain plug and exhaust pipes are cool enough to touch with bare hands before working.

Step-by-Step Oil Change Procedure

  1. Warm Up the Engine
    • Start your RM85 and let it idle for about 5–10 minutes. This helps loosen dirty oil and ensures it drains out completely.
  2. Stabilize the Motorcycle
    • Turn off the engine and place the bike on a level surface.
    • Hold the bike upright (vertical)—having an assistant helps.
  3. Remove the Oil Filler Cap
    • Locate the oil filler cap on the right side of the engine. Remove it to allow oil to drain more easily.
  4. Drain the Old Oil
    • Locate the drain plug beneath the engine.
    • Slide a drain pan underneath.
    • Using a 12mm socket, carefully remove the drain plug. Allow all oil to drain out–let it drip until it’s just about stopped.
    • Check the drain plug for any metal shavings, and clean it thoroughly.
  5. Replace the Drain Plug
    • Install the drain plug and hand-tighten first to avoid cross-threading.
    • If using a torque wrench, tighten the drain plug to 23 N·m (16.5 lb-ft).
    • Wipe off any spilled oil from the case and nearby surfaces to prevent attracting dirt.
  6. Add New Transmission Oil
    • Using a measuring cup, pour exactly 550 ml (about 1.2 US pints) of SAE 10W-40 oil into the filler hole with a funnel.
  7. Reinstall the Filler Cap
    • Ensure the O-ring is present and intact on the filler cap before reinstalling.
    • Tighten the cap securely, but do not over-tighten to avoid damaging threads.
  8. Verify Oil Level
    • Start the engine and let it run for a few minutes, then shut it off. Wait several minutes to allow the oil to settle.
    • Hold the bike upright and remove the oil level screw (check your manual for the exact location). Some oil should seep out of this screw hole, indicating full level. If not, add small increments of oil until it does.
    • Replace and tighten the oil level screw to 5.5 N·m (4.0 lb-ft).
  9. Dispose of Used Oil Properly
    • Pour oil into a sealed container and take it to your local hazardous waste facility or auto shop that accepts used oil.

Specific Call-outs for the 2006 Suzuki RM85

  • The oil change procedure for the 2006 RM85 is the same as for most years, but always confirm quantities and torque specs in your owner’s manual for changes by year.
  • Do not overtighten drain or filler plugs. The aluminum threads in the case can strip easily, leading to expensive repairs.
  • Use only the specified oil type–Other oils or incorrect viscosity can harm performance and clutch feel.
  • Always check the O-ring on the filler cap for cracks or wear to prevent future leaks.
  • This model uses a wet clutch transmission, making proper oil type (JASO MA rated) critical for smooth shifting and clutch longevity.
  • If you notice excessive metal debris on the drain plug, it may signal internal wear—inspect and consult a mechanic if needed.

Final Notes

  • Changing the oil in your 2006 Suzuki RM85 is straightforward with the right tools and attention to detail.
  • Mark your calendar to perform this task after every 5–10 hours of riding, or sooner in muddy or sandy conditions for best results.
  • Proper disposal of oil protects our environment–never dump used oil on the ground or in drains.

If you’re looking for OEM or aftermarket parts, fresh oil, or exclusive tips for your Suzuki RM85, trust MotoSport.com for expert advice and the best selection—all in one stop for serious riders.

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Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.